Below all that is the navigation, 4 arrows in a round formation, Enter is a round button in the middle of them.
That leaves only five more butttons. One the left is the audio mute, next to it is the Display mode button (which slowly rotates through all the different picture modes such as Bright, Cinema, Reference, 3D, HDR...
Next over is a button with three vertical dots, which is defined as the Options button. But it seems to not be used with this projector. (That’s not uncommon since a company may use the same remote with many projectors.).
That covers the remote, except to note that it runs on Lithium button batteries so there’s the usual clear tab to remove for the remote to work.
Bottom line, the Optoma UHD51A remote control gets the job done, its pretty easy to find in a dark room, and hit has all the basic buttons, and a good feel. I would have preferred a backlight, and perhaps some other features such as control buttons for the media player, but then Alexa can do that in a pinch.
I will give the UHD51A credit for having a very good layout, and good spacing between buttons. Within my first couple of days playing with this Optoma projector, I knew where each function was located, and could find each button I needed by memory, so really, after a few days, the backlight while it would have been nice to have, wasn't necessary. That's a plus.
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